Home / 3,134.36-4,703.40-1,188.20

Finding the Fourth Proportional to 3,134.36, 4,703.40 and 1,188.20

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Solution

The fourth proportional to 3,134.36, 4,703.40 and 1,188.20 is: 1,783.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,134.36 : 4,703.40 = 1,188.20 : x
  2. Step 2: Convert to fraction form
    3,134.36/4,703.40 = 1,188.20/x
  3. Step 3: Cross multiply
    3,134.36x = 4,703.40 × 1,188.20
  4. Step 4: Simplify right side
    3,134.36x = 5,588,579.88
  5. Step 5: Solve for x
    x = 5,588,579.88/3,134.36
  6. Step 6: Final answer
    x = 1,783.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.